be thankful for small mercies meaning in Hindi

Examples

1. Gave up ( at least there was a " Cancel " button, be thankful for small mercies ).
2. The chapter ends with Foster, impressed by Hornblower's actions, telling Hornblower that, since the attack prevented him from failing the examination, he should " Be thankful for small mercies.
3. :Equally, the current nature of the text makes it totally inaccessible to anyone with less than third level comprehension ( though, in it's current, biased, state, perhaps I should be thankful for small mercies ?)