Cast Sensei's Divining Top either from your hand or from the top of your library by paying 1.
Alela triggers, creating a 1/1 Faerie creature token.
Activate Phyrexian Altar by sacrificing the Faerie, adding 1.
Activate Sensei's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
Repeat.
This loop is an absolute masterclass in resource recycling, fueled by the seamless interplay between your command zone and your library. While Phyrexian Altar provides the engine by converting sacrifice fodder into mana, Alela, Artful Provocateur ensures a steady stream of that fodder by spawning a flying Faerie token every time you cast an artifact. This lets you endlessly recast Sensei's Divining Top by tapping it to draw itself and placing it back on top of your library, where Madame Web, Clairvoyant conveniently allows you to cast it right back off the top.