Dharma

Do you wish to fulfill your dreams?

Then practise धर्म. Cultivate yourself through right living.

Yoga

Do you seek a happiness deeper than pleasures?

Then practise योग.

Sankhya

Do you seek not pleasures, but only infinite happiness?

Then step into साङ्ख्य (Jnana-yoga).

Shastra

Do you wish to know what the scriptures say?

Then go to the source text, the शास्त्र.