नेहाभिक्रमनाशोऽस्ति प्रत्यवायो न विद्यते। स्वल्पमप्यस्य धर्मस्य त्रायते महतो भयात् ॥

nehābhikrama-nāśho ’sti pratyavāyo na vidyate svalpam apyasya dharmasya trāyate mahato bhayāt

In this there is no loss of effort, nor is there transgression. Even a little of this knowledge protects from great fear.

In plain words: Krishna says no effort on this path is ever wasted, and nothing can go wrong by trying it. Even a little of this wisdom protects a person from great fear.