Here's a breakdown of how he achieves this:
* He is determined: The Baron is obsessed with obtaining one of Belinda's beautiful locks of hair. He has dreamt of it and is spurred on by his vanity and desire for conquest.
* He prays for success: The poem indicates that the Baron offers a sacrifice (a pile of love letters and trinkets) to the altar of Love, praying for his conquest to be successful.
* The intervention of Clarissa: In canto III, Clarissa provides the Baron with a pair of scissors. Clarissa, who may represent worldly wisdom, urges Belinda and the others to be sensible and embrace social harmony. She gives the baron the scissors to cut the lock of hair off.
* After Clarissa gives the scissors to the Baron, he uses them to snip the lock of hair.
In essence, the Baron's success is portrayed as a result of his persistent desire, combined with a little bit of divine (or perhaps, satirical) help, and the use of the scissors, which were brought to him by Clarissa.