Verse 2.13

सति मूले तद्विपाको जात्यायुर्भोगाः ॥१३॥

sati mūle tad-vipāko jāty-āyur-bhogāḥ ॥13॥

The root being there, the fruition comes (in the form of) species, life, and expression of pleasure and pain.

Verse 2.14

ते ह्लाद परितापफलाः पुण्यापुण्यहेतुत्वात् ॥१४॥

te hlāda paritāpa-phalāḥ puṇya-apuṇya-hetutvāt ॥14॥

The karmas bear fruits of pleasure or pain, caused by virtue or vice.

Life itself springs from the mixture of good and bad actions, favourable and unfavourable imprints. These form one's birth , rank in life, span of life and the kind of experiences one has to undergo.

According to the law of karma, all conditions in the nature of our birth and life stem from our past actions, and are responsible for the experiences, pleasant or otherwise, which we meet in life.

The fruits of the actions gathered in this life are called samskaras which become residual imprints or impressions. 

The fruits of actions committed

in all previous lives are called vasanas (knowledge derived from memory, or the present consciousness of past actions). 

Vasanas are impressions remaining unconsciously in the mind from past good or bad actions, producing pleasure or pain.

In this sutra, the karmic law of cause and effect is further considered.

Sutras 12-14 indicate sadhaka should plan a yogic, disciplined way of life to minimize the imprints of action.

Good or bad karma is determined not by any social code of behaviour, but only according to the simple criterion:

Will it uplift your consciousness towards by diassociating your self from the samsara, or draw it farther downward, away from supreme Brahman. 

The deeds themselves are less important than the intentions behind those deeds. You may have given away fortunes in charity, but if you did it with the hope of impressing others, the outer benefits of that generosity will be balanced against the egoistic intentions. It is always good to do good, even for selfish reasons, but it is far better to do good in a spirit of genuine kindliness.

PATANJALI YOGA SUTRAS