Well, as a non-native speaker of English I don´t feel it to be very mechanical but rather intuitive and associative, at least compared to German, my mother tongue, which is great for creating exact definitions of the most complicated stuff, but not the best language for singing for example, with its staccato intonation.
Somewhere I read though, that Sanskrit would be the most logical language in the world, most perfect for computer programming. Who knows?
I think the Maha Mrityunjaya Mantra is more for the wellbeing of the bereaved than the deceased, offering solace and consolation, easing the pain of loss, calming the mind.