Analysis of Only thou could know

As if I were a stone segment, rolling with the stream, Where it will stop, where it will reach, thou only know.
Where, when and how thou will take me with time, where there is a godsend crept in, where there is a ruin hideaway, only thou know.
At times thou pick me up in the broken boat, at times thou pick me up in the chariot of joy, my ignorant mind starts doubting thy care with me, it sits and stupidly keep going rating ; Anything without know.
Hey Lord, if there  is anything to know, thou art the thee only who could know.