The association of purusha with the 24 tattvas continues so long as it is influenced by rajas and tamas. If it is freed from this influence (of rajas and tamas) by dominance of sattva, the purusha is said to be liberated (and free from its association with the tattvas).
It is within this combination of 24 elements (known as the Purusha), that action, fruit or consequence of the action, knowledge, ignorance, happiness, misery, life, death and ownership are established.
भास्तमः सत्यमनृतं वेदाः कर्म शुभाशुभम्| न स्युः कर्ता [१] च बोद्धा च पुरुषो न भवेद्यदि ||३९||
While describing the reason for existence, (Charak says that) for anyone not accepting purusha as the cause or reason for existence (of life), there will be no existence of knowledge, ignorance, truth or falsehood, the vedas, auspicious and non-auspicious deeds, and the agents of action and knowledge.