Synonyms:

avinasi–imperishable; tu–but; tat–that; viddhi–know it; yena–by whom; sarvam–all of the body; idam–this; tatam–pervaded; vinasam–destruction; avyayasya–of the imperishable; asya–of it; na kascit–no one; kartum–to do; arhati–is able.

Translation:

Know that which pervades the entire body is indestructible. No one is able to destroy the imperishable soul.