Every candle on a higher timeframe is built from smaller candles on a lower one. A single daily candle is really dozens of 1-hour candles stacked together; a single 1-hour candle is really dozens of 1-minute candles. Multi-timeframe analysis just means looking at more than one of these zoom levels at once, instead of picking a single timeframe and ignoring the rest.
For education only. Nothing here is financial advice, and trading involves risk.