The cloth was saturated with water.
Pleasant smells saturated the bakery. The species had saturated its habitat. Happy memories saturated his mind.
When it rains for days and days and the soil becomes incredibly wet, this is an example of a time when the rain saturates the soil.
When a negligent power plant dumps toxic waste into the water and the water is contaminated with it, this is an example of a situation where the water is saturated with toxic waste.
When a company makes so many mp3 players that every single person has one and there is no more market for them, this is an example of a time when the company saturates the market.
One can saturate phosphorus with chlorine.