Imagine you have a two bar long pad sound (no LFO trigs) that goes:
…“sssssshhheeeeeewwwwww…”
Placing an LFO trigger somewhere after the first trig has started might make the pad sound like:
“ssssssshhhwww …(LFO trig)… whawhawhawhaahhwaawhhaawhhaa”.
And then another trig further down the pattern with a different LFO setting so the pad now goes:
“ssssshsssseeeew…(LFO trig 1)…whaahhwaawhhaawhhaaw…(LFO trig 2)…WubWubWubWubWubWub”
All from a single ‘note on’ trig. That way your sound can evolve and change without sounding like it has been ‘played’ again.