This catches a lot of people off guard. They sit down expecting calm, and what shows up instead is irritation, sadness, restlessness, even old memories they hadn't thought about in years. It feels like the opposite of what was promised.
Nothing has gone wrong
Most of the day, attention is pointed outward: a screen, a conversation, a task. That outward pull acts like noise, and it quietly drowns out whatever is happening underneath it. Sitting still removes the noise. It doesn't remove what was underneath, it just stops covering it up.
What surfaces during meditation was already there. Meditation didn't create it. It just stopped hiding it from you.
This is the actual process, not a detour from it
A useful way to think about it: the mind is like a glass of water with sediment settled at the bottom. Movement keeps the water cloudy. Stillness lets the sediment show itself, before it can finally settle and clear. The discomfort in the middle of that isn't a sign of failure, it's a sign the water is actually moving toward clear.
This is part of what we mean by maturity in practice: staying with what's real instead of only chasing states that feel good. A practice that only ever produces pleasant calm isn't doing very much work.
When it's more than that
There's an honest exception here. If what surfaces is overwhelming, persistent, or tied to real trauma, that's not something to push through alone with a meditation technique. That calls for real support, ideally from a qualified therapist, alongside whatever practice you're doing, not instead of it.
For the ordinary version, restlessness, irritability, a wave of old sadness that passes, the instruction is simple: stay seated a little longer than feels comfortable, and let it move through rather than pushing it away or chasing it.