# $\lambda$ parameter for U3 gate in qiskit Bloch sphere visualisation

It is easy to see how $$\theta$$ (rotation from the positive z-axis) and $$\varphi$$ (rotation from the positive z-axis) affect the initial state of the qubit when looking at the Bloch sphere but I have been playing around with different $$\lambda$$ values and can't see a clear transformation. Geometrically, how does lambda transform the state?

$$\lambda$$ is also a rotation around the $$z$$ axis. However, there is an ordering issue. There's a sequence of $$z$$-rotation ($$\lambda$$), $$y$$-rotation ($$\theta$$), $$z$$-rotation ($$\varphi$$).