The effects & presets panel is your library of all built-in effects — it’s where you find everything from blur to distortion to color correction.
Steps to use the effects & presets panel
Open it via Window → Effects & Presets.

Search by typing “blur,” “glow,” or any keyword you’re looking for.

Drag the effect onto a layer in the timeline or comp viewer and it applies instantly.

One more thing
Press Ctrl+5 (Windows) / Command+5 (Mac) to quickly show or hide the panel without navigating menus.
Related how-tos
How to apply an effect in After Effects
How to search for effects quickly in After Effects
How to make glowing text in After Effects
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