Cryptic Pentameter

a poem by Inchara

You easily cannot access the deep buried treasure
A presume made wrongly will profit a meager
An able eye detects the strange the rest is guess
And there lies the last rung of ladder to success

The collection the British storage has is plenty
If shelves of science are scanned from one to ninety
Inside soft white folds the grains are stacked
The path is walked through red door cracked