“Through Śraddhā we get the Vīrya to pursue to the end
and if we hold firm to this Śraddhā we always have the Smṛti,
the memory of our original goal.
This is very important as with progress on the path to the goal,
we get distracted by or satisfied with some of the gains made
that were previously not within our capacity.
It is through Śraddhā that we have the Smṛti,
the memory of the original goal, that prevents us from being satisfied
with anything less than what we started out for.”
– TKV Desikachar on Śraddhā in the Yoga Sūtra