[Pronoun + verb to be] absolutely ridiculous.
Examples:
*He is absolutely ridiculous!
*My dog is absolutely ridiculous!
Although, these are the simplest forms of a sentence, which means you could probably add some nouns and adjectives wherever you urge to.
Answer:
i think it is a phrase not clause
they might become dry and lifeless
explanation: Because if you postpone your dreams and you don't work to acheive them as soon as you think of them, then they will become lifeless, because you aren't making them a reality.