The 14, 17 and 18th chapters of the Bhagavad Gita have practical insights on the Triguna: Satva, Rajas and Tamas.
Here is a table to make the insights simple.
Satva RajasTamasNaturePure, illuminating, free from sinful reactions or diseases, healthyPassion, thirst, attachmentIgnorance, delusion, inertia, sleep, laziness, carelessnessCharacteristic signs of the guna predominatingLight of knowledge, clear understanding and perception shines through the bodyRestlessness, greed, great attachment, uncontrollable desire, hankering, and intense endeavorIgnorance or absence of knowledge/darkness, inertness, negligence, delusionDevelops attachment toKnowledge and happinessMaterial actions and their fruitsCarelessness, sleep, laziness/inactionFruit of actionsSattvika and PurePain/sorrowIgnoranceGati/ progressGo upwardsDwell in the middleGo downwardsNext birth as per the guna predominant while deathSpotless worlds of knowers of the highest principlesBorn among those attached to actionsBorn among beings involved in ignoranceWorshipSattvika ones worship Gods and divinityRajasic ones worship Asuras/rakshas and yakshas (keepers of wealth) Towards ghosts, elemental and grosser spirits
Satva RajasTamasYajna (Sacrifice)Accordance with scriptures, with firm conviction and selflessFor show and with material benefit in mindNot in alignment with the scriptures, Devoid of faith or anna dana or sacred chants and done in ignoranceDana (Giving)Selfless, with a sense of duty, and to worthy person at right time and placeDone with a grudging attitude, aimed at getting something in return or expecting a rewardWithout grace, done at wrong place, time to an undeserving personGnana (Knowledge)When we see the undivided atman to be equally present in everythingmanifold living entities in diverse bodies and unconnectedneither grounded in reason nor based on the truth and trivialKarma (Action)Free from raga, dwesha and based on the scriptures and seeks no returndone wit strain, pride and full of ego and for pleasureIgnorant, without considering loss to oneself or others and injuring othersKarta (Doer) Free from ahamkara and does with involvement and enthusiasmcraves the fruits of the work, is covetous, violent-natured, impure, and moved by joy and sorrow.undisciplined, vulgar, stubborn, deceitful, slothful, despondent, and a procrastinator.Buddhi (Intellect)Dharma ‑adharma vivekaconfused between righteousness and unrighteousnessperceiving untruth to be the truthDriti (Determination)Driti developed through Yoga and holds the mind and sensesHolding duty, pleasures, and wealth out of attachment and desire for rewardsone does not give up dreaming, fearing, grieving, despair, and conceit.
Satva RajasTamasTapas (Austerity) of body, mind, speech Selfless and done to please God; done with sattvika shraddha and without any material or personal benefit for oneself in mindTo gain respect, honor and reverence; such practices are neither permanent nor stablefoolishly by means of obstinant self-torture, or to destroy or injure othersRenunciation/ (tyaga)Performing one’s duty because it is to be done; gives up attachment to action or its fruits; neither aversion towards unpleasant work nor attached to pleasant work, have no doubts about work Giving up prescribed duties because they bring sorrow or fear or cause trouble to the body; do not obtain the fruit of renunciation with such kindGiving up one’s prescribed duties by illusionKarma phala (Fruits of action)*DesirableSometimes desirable, sometimes undesirableUndesirableSukha (Happiness)which in the beginning may be like poison but like nectar in the end; born of satisfaction of higher mind and spirit derived from contact of the senses with their objects and which appears like nectar at first but poison at the endblind to self-realization, which is delusion from beginning to end and which arises from sleep, laziness and illusionFood as liked by persons of temperament:increase the duration of life, purify one’s existence and give strength, health, happiness and satisfaction. Such nourishing foods are sweet, juicy, fattening and palatabletoo bitter, too sour, salty, pungent, dry and hot, are liked by people in the modes of passion. Such foods cause pain, distress, and diseasecold, impure, stale/rotten, tasteless, remains of food half-eaten by others
*for those who’ve not given up attachment to karma phala)