A more thorough explanation:

Definition: Manifestation of intention refers to the external expression of a person's intention, as opposed to an undisclosed intention. In the context of wills and estates, it refers to the clear expression of a testator's wishes.

Example: If a person writes a will, they are making a manifestation of intention. The will is a clear expression of their wishes for how their property and assets should be distributed after their death.

Explanation: The example illustrates how a will is a manifestation of intention. The testator's intention is expressed in the document, and it is clear to anyone who reads it what their wishes are. This is important in the context of wills and estates, as it helps to ensure that the testator's wishes are carried out after their death.