An inter vivos trust is created by bilateral agreement between settlor and trustee, which may be oral or written. For a valid trust: (1) the settlor must intend to create a trust in his lifetime; (2) this intention must be expressed in a manner that creates an obligation upon the trustee, which obligation must be accepted; (3) the trust property must be defined with reasonable certainty; and (4) the objects must be lawful and set out with reasonable certainty. Where a trust deed is ambiguous, it must be interpreted by considering all relevant evidence including the declared intention of the settlor, assumption of trustee obligations, formal appointment, and transfer of control of trust property. The interpretation of trust instruments follows the unitary approach of considering text, context and purpose together. Where a trust deed prescribes the manner in which it may be amended (such as requiring agreement by named trustees), such provisions must be strictly complied with - persons named as potential future trustees who have not yet assumed office cannot validly agree to amendments as 'trustees'. A court cannot exercise discretion under section 13 of the Trust Property Control Act to vary a trust deed mero motu without proper application and without establishing the statutory grounds (that the provision hampers achievement of objects, is prejudicial to beneficiaries, or conflicts with public interest).