folding anchor???

hi, quite new to boating, got big inflatable, dont laugh but tried anchoring
with bag of stones on rope over the side to do bit of fishing, hopeless as u
prob know in a breeze ,also heavy to lift up again, so got myself a small
folding type anchor.
bit puzzled as to what to do getting up if the spikes get stuck on bottom
junk or whatever. i see it has an eye at the bottom which i presume is for
another rope ??? so u can pull up and out hopefully from snag??can anyone
say if this is correct or do u just hope u dont get snagged??? cheers dunky