A trust instrument is basically a descriptive written plan which delays and controls the ultimate distribution and management of your assets. After your death or incapacity, the person you designate as a successor trustee will carry out your written intentions. The trust can also provide for management of the funds designated for one or more of your beneficiaries if a beneficiary is a minor or is otherwise not able to manage funds. There are different types of trusts available, each with their own specific benefits to provide future management of your assets. Assets which are held in trust are generally not subject to probate.